scholarly journals Generalized emergent dark energy model and the Hubble constant tension

2021 ◽  
Vol 104 (6) ◽  
Author(s):  
Weiqiang Yang ◽  
Eleonora Di Valentino ◽  
Supriya Pan ◽  
Arman Shafieloo ◽  
Xiaolei Li
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Hubble Constant ◽  
Energy Model ◽  
Constant Tension

scholarly journals Cosmological viable f(R,T) dark energy model: dynamics and stability

2014 ◽  
Vol 356 (1) ◽  
pp. 173-180 ◽  
Author(s):  
E. H. Baffou ◽  
A. V. Kpadonou ◽  
M. E. Rodrigues ◽  
M. J. S. Houndjo ◽  
J. Tossa
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Energy Model ◽  
Model Dynamics

scholarly journals f(T) GRAVITY FROM HOLOGRAPHIC RICCI DARK ENERGY MODEL WITH NEW BOUNDARY CONDITIONS

2013 ◽  
Vol 28 (39) ◽  
pp. 1350171 ◽  
Author(s):  
PENG HUANG ◽  
YONG-CHANG HUANG ◽  
FANG-FANG YUAN
Keyword(s):  
Dark Energy ◽  
Boundary Conditions ◽  
Dark Energy Model ◽  
Energy Model ◽  
Ricci Dark Energy ◽  
Expected Information ◽  
Better Than

Commonly used boundary conditions in reconstructing f(T) gravity from holographic Ricci dark energy (RDE) model are found to cause some problem, we therefore propose new boundary conditions in this paper. By reconstructing f(T) gravity from the RDE with these new boundary conditions, we show that the new ones are better than the present commonly used ones since they can give the physically expected information, which is lost when the commonly used ones are taken in the reconstruction, of the resulting f(T) theory. Thus, the new boundary conditions proposed here are more suitable for the reconstruction of f(T) gravity.

scholarly journals Quadrature algorithms to the luminosity distance with a time-dependent dark energy model

2011 ◽  
Vol 2011 (11) ◽  
pp. 047-047 ◽  
Author(s):  
Nan-Nan Yue ◽  
De-Zi Liu ◽  
Xiao-Xing Pei ◽  
Fang-Fang Zhu ◽  
Tong-Jie Zhang ◽  
...  
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Energy Model ◽  
Time Dependent ◽  
Luminosity Distance

Constraints on the Ricci dark energy cosmologies in Bianchi type I model

2021 ◽  
pp. 2150095
Author(s):  
H. Hossienkhani ◽  
N. Azimi ◽  
H. Yousefi
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Bianchi Type ◽  
Energy Model ◽  
Accelerated Expansion ◽  
Likelihood Method ◽  
Type I ◽  
Ricci Dark Energy ◽  
Bianchi Type I ◽  
The Impact

The impact of anisotropy on the Ricci dark energy cosmologies is investigated where it is assumed that the geometry of the universe is described by Bianchi type I (BI) metric. The main goal is to determine the astrophysical constraints on the model by using the current available data as type Ia supernovae (SNIa), the Baryon Acoustic Oscillation (BAO), and the Hubble parameter [Formula: see text] data. In this regard, a maximum likelihood method is applied to constrain the cosmological parameters. Combining the data, it is found out that the allowed range for the density parameter of the model stands in [Formula: see text]. With the help of the Supernova Legacy Survey (SNLS) sample, we estimate the possible dipole anisotropy of the Ricci dark energy model. Then, by using a standard [Formula: see text] minimization method, it is realized that the transition epoch from early decelerated to current accelerated expansion occurs faster in Ricci dark energy model than [Formula: see text]CDM model. The results indicate that the BI model for the Ricci dark energy is consistent with the observational data.

scholarly journals Interacting Holographic Viscous Dark Energy Model

2009 ◽  
Vol 49 (1) ◽  
pp. 42-50 ◽  
Author(s):  
Mubasher Jamil ◽  
M. Umar Farooq
Keyword(s):  
Dark Energy ◽  
Dark Energy Model ◽  
Energy Model
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